From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 12:30:43 +0000 (+0100)
Subject: x86 vDSO: ia32_sysenter_target
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=0aa97fb22624f18e5925d702ab0364d3838cfd91;p=openwrt%2Fstaging%2Fblogic.git

x86 vDSO: ia32_sysenter_target

This harmonizes the name for the entry point from the 32-bit sysenter
instruction across 32-bit and 64-bit kernels.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index d63609dd64b9..153bb87a4eea 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -283,7 +283,7 @@ END(resume_kernel)
    the vsyscall page.  See vsyscall-sysentry.S, which defines the symbol.  */
 
 	# sysenter call handler stub
-ENTRY(sysenter_entry)
+ENTRY(ia32_sysenter_target)
 	CFI_STARTPROC simple
 	CFI_SIGNAL_FRAME
 	CFI_DEF_CFA esp, 0
@@ -360,7 +360,7 @@ sysenter_past_esp:
 	.align 4
 	.long 1b,2b
 .popsection
-ENDPROC(sysenter_entry)
+ENDPROC(ia32_sysenter_target)
 
 	# system call handler stub
 ENTRY(system_call)
@@ -768,7 +768,7 @@ label:						\
 
 KPROBE_ENTRY(debug)
 	RING0_INT_FRAME
-	cmpl $sysenter_entry,(%esp)
+	cmpl $ia32_sysenter_target,(%esp)
 	jne debug_stack_correct
 	FIX_STACK(12, debug_stack_correct, debug_esp_fix_insn)
 debug_stack_correct:
@@ -799,7 +799,7 @@ KPROBE_ENTRY(nmi)
 	popl %eax
 	CFI_ADJUST_CFA_OFFSET -4
 	je nmi_espfix_stack
-	cmpl $sysenter_entry,(%esp)
+	cmpl $ia32_sysenter_target,(%esp)
 	je nmi_stack_fixup
 	pushl %eax
 	CFI_ADJUST_CFA_OFFSET 4
@@ -812,7 +812,7 @@ KPROBE_ENTRY(nmi)
 	popl %eax
 	CFI_ADJUST_CFA_OFFSET -4
 	jae nmi_stack_correct
-	cmpl $sysenter_entry,12(%esp)
+	cmpl $ia32_sysenter_target,12(%esp)
 	je nmi_debug_stack_check
 nmi_stack_correct:
 	/* We have a RING0_INT_FRAME here */
diff --git a/arch/x86/vdso/vdso32-setup.c b/arch/x86/vdso/vdso32-setup.c
index 85c52d23ee40..fb71a93c5dce 100644
--- a/arch/x86/vdso/vdso32-setup.c
+++ b/arch/x86/vdso/vdso32-setup.c
@@ -54,7 +54,7 @@ static int __init vdso_setup(char *s)
 
 __setup("vdso=", vdso_setup);
 
-extern asmlinkage void sysenter_entry(void);
+extern asmlinkage void ia32_sysenter_target(void);
 
 static __init void reloc_symtab(Elf32_Ehdr *ehdr,
 				unsigned offset, unsigned size)
@@ -187,7 +187,7 @@ void enable_sep_cpu(void)
 	tss->x86_tss.esp1 = sizeof(struct tss_struct) + (unsigned long) tss;
 	wrmsr(MSR_IA32_SYSENTER_CS, __KERNEL_CS, 0);
 	wrmsr(MSR_IA32_SYSENTER_ESP, tss->x86_tss.esp1, 0);
-	wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) sysenter_entry, 0);
+	wrmsr(MSR_IA32_SYSENTER_EIP, (unsigned long) ia32_sysenter_target, 0);
 	put_cpu();	
 }